diff --git a/src/model.js b/src/model.js
index 8c23d410dc..2084553dfc 100644
--- a/src/model.js
+++ b/src/model.js
@@ -1226,6 +1226,9 @@
         _default: null,
         get: function(record) {
             var value = record._values[this.name];
+            if (value === undefined) {
+                value = this._default;
+            }
             // TODO force parent
             return value;
         },